skipping-bucking (Full Version)

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skipping-bucking


  

hphammer -> skipping-bucking (5/3/2007 11:45:04 AM)

99 astro AWD
complete tuned up 2 months ago
2 weeks ago started to skip/ buck
added gas treatment and 2 tanks of gas still bucking
does not buck/skip under a load or acceleration
bucks/ skip not under load at any speed seams to be at a certian position on the gas pedal
could it be fuel injectors or a bad distributor?? Can someone help?[:@]


  

amonahan -> RE: skipping-bucking (1/25/2008 6:44:46 PM)

My '97 puzzled me for months with a similar problem.  I had erratic skipping/missing, but it always went when the pedal was on the floor.  It also idled fine.  I never had any trouble codes and the MIL light never came on.  Finally I tore out the distributor on the advice of a friend and the gear was horribly worn.  Changed out the gear and it's been fine.  A shop with a good scan tool can look at the cam retard timing and tell right away if this is an issue.  Mine was floating somewhere around -30degrees.  It should be +/- 2 degrees I think.  Maybe this helps?  I'm sure there's more than just one bad gear out there that was heat treated on a friday afternoon!


  

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